[백준] 반복문 - 25304_영수증 Java[자바]

[Bronze IV]

StringTokenizer를 활용해 풀 수 있는 기본적인 문제이다.

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        int totalPrice = Integer.valueOf(br.readLine());
        int totalAmount = Integer.valueOf(br.readLine());
        int sum = 0;
        String yn = "No";
        
        for(int i = 0; i < totalAmount; i++) {
            st = new StringTokenizer(br.readLine(), " ");
            sum += Integer.valueOf(st.nextToken()) * Integer.valueOf(st.nextToken());
        }
        
        if(sum == totalPrice) {
            yn = "Yes";
        }
        
        System.out.print(yn);
    }
}